[Ksummit-2010-discuss] [v2] Remaining BKL users, what to do

[Jiri Kosina]

On Tue, 19 Oct 2010, Greg KH wrote:

> > > > So no need to clean it up for multiprocessor support.
> > > > 
> > > > http://download.intel.com/design/chipsets/datashts/29067602.pdf
> > > > http://www.intel.com/design/chipsets/specupdt/29069403.pdf
> > > 
> > > Great, we can just drop all calls to lock_kernel() and the like in the
> > > driver and be done with it, right?
> > 
> > No,
> > 
> > you still need to switch off preemption.
> 
> Hm, how would you do that from within a driver?

preempt_disable()

-- 
Jiri Kosina
SUSE Labs, Novell Inc.